{"id":42943,"date":"2020-02-17T14:41:56","date_gmt":"2020-02-17T11:41:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/iz-chrome-web-store-udaleno-bolee-500-vredonosnyh-dopolnenij"},"modified":"2020-02-17T14:41:56","modified_gmt":"2020-02-17T11:41:56","slug":"iz-chrome-web-store-udaleno-bolee-500-vredonosnyh-dopolnenij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/iz-chrome-web-store-udaleno-bolee-500-vredonosnyh-dopolnenij","title":{"rendered":"Z Chrome Web Store usuni\u0119to ponad 500 z\u0142o\u015bliwych rozszerze\u0144","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/duo.com\/labs\/research\/crxcavator-malvertising-2020\">Podsumowanie<\/a><\/noindex> blokowania serii z\u0142o\u015bliwych dodatk\u00f3w do przegl\u0105darki Chrome, kt\u00f3re dotkn\u0119\u0142y kilka milion\u00f3w u\u017cytkownik\u00f3w. Na pierwszym etapie niezale\u017cna badaczka Jamila Kaya (<noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/bumblebreaches\/status\/1228058396923875328\">Jamila Kaya<\/a><\/noindex>) oraz firma Duo Security zidentyfikowa\u0142y 71 z\u0142o\u015bliwych dodatk\u00f3w w katalogu Chrome Web Store. W sumie te dodatki mia\u0142y ponad 1,7 miliona instalacji. Po poinformowaniu Google o problemie, w katalogu odkryto jeszcze ponad 430 podobnych dodatk\u00f3w, kt\u00f3rych liczba instalacji nie zosta\u0142a podana. <\/p>\n<p>Ciekawe jest to, \u017ce mimo imponuj\u0105cej liczby instalacji \u017caden z problematycznych dodatk\u00f3w nie ma recenzji u\u017cytkownik\u00f3w, co rodzi pytania o to, w jaki spos\u00f3b dodatki zosta\u0142y zainstalowane i jak z\u0142o\u015bliwa aktywno\u015b\u0107 pozosta\u0142a niezauwa\u017cona. W chwili obecnej wszystkie problematyczne dodatki zosta\u0142y usuni\u0119te z Chrome Web Store.<br \/>\nWed\u0142ug badaczy, zwi\u0105zana z zablokowanymi dodatkami z\u0142o\u015bliwa dzia\u0142alno\u015b\u0107 trwa od stycznia 2019 roku, ale niekt\u00f3re domeny stosowane do realizacji z\u0142o\u015bliwych dzia\u0142a\u0144 zosta\u0142y zarejestrowane ju\u017c w 2017 roku. <\/p>\n<p>W wi\u0119kszo\u015bci przypadk\u00f3w z\u0142o\u015bliwe dodatki by\u0142y przedstawiane jako narz\u0119dzia do promocji produkt\u00f3w i udzia\u0142u w us\u0142ugach reklamowych (u\u017cytkownik przegl\u0105da reklamy i otrzymuje prowizje). W dodatkach stosowano technik\u0119 przekierowywania na reklamowane strony przy otwieraniu stron, kt\u00f3re by\u0142y wy\u015bwietlane przed wy\u015bwietleniem \u017c\u0105danej witryny. <\/p>\n<p>We wszystkich dodatkach stosowano podobn\u0105 technik\u0119 do ukrywania z\u0142o\u015bliwej aktywno\u015bci i omijania mechanizm\u00f3w weryfikacji dodatk\u00f3w w Chrome Web Store. Kod wszystkich dodatk\u00f3w by\u0142 praktycznie identyczny na poziomie kodu \u017ar\u00f3d\u0142owego, z wyj\u0105tkiem nazw funkcji, kt\u00f3re w ka\u017cdym dodatku by\u0142y unikalne. Przekazywanie z\u0142o\u015bliwej logiki odbywa\u0142o si\u0119 z centralnych serwer\u00f3w steruj\u0105cych. Na pocz\u0105tku dodatek \u0142\u0105czy\u0142 si\u0119 z domen\u0105 o tej samej nazwie co tytu\u0142 dodatku (na przyk\u0142ad Mapstrek.com), a nast\u0119pnie przekierowywano go na jeden z serwer\u00f3w zarz\u0105dzaj\u0105cych, kt\u00f3re dostarcza\u0142y skrypt dalszych dzia\u0142a\u0144.<\/p>\n<p>W\u015br\u00f3d dzia\u0142a\u0144 realizowanych za pomoc\u0105 dodatk\u00f3w wymienia si\u0119 przesy\u0142anie na zewn\u0119trzny serwer poufnych danych u\u017cytkownik\u00f3w, przekierowywanie na z\u0142o\u015bliwe witryny oraz umo\u017cliwianie instalacji z\u0142o\u015bliwego oprogramowania (na przyk\u0142ad wy\u015bwietlane jest powiadomienie o infekcji komputera i proponowane jest z\u0142o\u015bliwe oprogramowanie pod pozorem antywirusa lub aktualizacji przegl\u0105darki). W\u015br\u00f3d domen, na kt\u00f3re odbywa\u0142y si\u0119 przekierowania, znajduj\u0105 si\u0119 r\u00f3\u017cne domeny phishingowe oraz strony wykorzystywane do atak\u00f3w na nieaktualne przegl\u0105darki, zawieraj\u0105ce nieusuni\u0119te luki (na przyk\u0142ad po ataku podejmowane by\u0142y pr\u00f3by instalacji z\u0142o\u015bliwych program\u00f3w, kt\u00f3re przechwytywa\u0142y dane dost\u0119powe i analizowa\u0142y przesy\u0142 danych poufnych za po\u015brednictwem schowka).<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>\u0179r\u00f3d\u0142o: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52371\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0434\u0432\u0435\u0434\u0435\u043d\u044b \u0438\u0442\u043e\u0433\u0438 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0435\u0440\u0438\u0438 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0445 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0439 \u043a \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0443 Chrome, \u0436\u0435\u0440\u0442\u0432\u0430\u043c\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u0442\u0430\u043b\u043e \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u043e\u0432 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439. \u041d\u0430 \u043f\u0435\u0440\u0432\u043e\u043c \u044d\u0442\u0430\u043f\u0435 \u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u044b\u0439 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0414\u0436\u0430\u043c\u0438\u043b\u044f \u041a\u0430\u0439\u044f (Jamila Kaya) \u0438 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Duo Security \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u0432 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0435 Chrome Web Store 71 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0435 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435. \u0412 \u0441\u0443\u043c\u043c\u0435 \u0443\u043a\u0430\u0437\u0430\u043d\u043d\u044b\u0435 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u043d\u0430\u0441\u0447\u0438\u0442\u044b\u0432\u0430\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 1.7 \u043c\u043b\u043d \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043e\u043a. \u041f\u043e\u0441\u043b\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f Google \u043e \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0435, \u0432 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0435 \u0431\u044b\u043b\u043e \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-42943","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0434\u0432\u0435\u0434\u0435\u043d\u044b \u0438\u0442\u043e\u0433\u0438 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0435\u0440\u0438\u0438 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0445 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0439 \u043a \u0431\u0440\u0430\u0443\u0437\u0435\u0440\u0443 Chrome, \u0436\u0435\u0440\u0442\u0432\u0430\u043c\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u0442\u0430\u043b\u043e 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